Valve-lock.



J. D. COMPTON.

VALVE LOCK.

APPLICATION FILED MAY 19. 191e.

1,287,641@ Patented De@.17,1918.

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JOHN D. COMPTON, or MINNEAPOLIS, MINNESOTA. i

VALVE-LOCK.

f Minneapolis, in the county of Hennepin and State of Minnesota, have 'invented 'certain new and'useful Improvements in Valve-v Locks, of which the following is a specification.

My invention relates to valve locks and has 'for an object to provide a lock by which the liow of fluid in a pipe-line may be shut off by simply turning the key in the lock.

In carrying out my invention I provide aV lock having a pair of ports which pass through the lock body and which Communicate with the interior of a casing attached thereto. A valve head is eccentric-ally secured to the lock barrel, being seated lon the lock body covering said ports and is adapted to open the ports asV the barrel sprotated, permitting the fluid t0 flow from one port to the other through the casing..

The full objects and advantages of my invention will appeal' in connection with the detailed description thereof and are particularly pointed out in the claims.

In the drawings, illustrating thev application of my invention in one form,-

invention with parts cut away and partsy drawn in section. Fig. 2 is an elevational sectional View taken on line y2-2 of Fig. 1.

Fig. 3 is a plan sectionalyiew taken substantially on line 3-3 of Fig. 1. Fig. 4 is an elevational sectional view taken on line 4-4 0f Fig. 3. Fig. 5 is a view similar to Fig. 4 with the valve head removed.

In constructing my invention'I employ the usual barrel lock 10, which is clearly shown in Figs. 1, 2 and 3. A body portion 11 is formed with a tumbler housing 12 and a barrel housing 13 in which is mounted.

a barrel 14 in the usual manner. These housings are cast integral with each other and with a flanged facing plate 15 through which the barrel 14 projects. The whole body of the lock is externally threaded, as clearly shown in Fig. 3. Y

The manner of applying the lock proper to the pipe-line will now be described. A casing 16 having a cylindrical portion 17 is internally threaded to receive the threaded body 11 of the lock 10, which is screwed into said casing up to the flange of the plate 15 and securely held in place by a setscrew 18, which when sealed will prevent Specification of Letters Patent. i Patented DBC. 17,1918- Application filed Mza/5r 19, 1916. Serial No. 98,568. i y v I removing the lock barrel vas best shown in Fig. 2. 'The lock may bepressed into this cylinder-if desired, thus permanently securing it in place. The cylindrical portion 17 of casing 16 extends throughout the whole` 19 and 20` previously7 mentioned. These chambers communicate with a discoidal chamber 27 formed on the rear of the casing 16 by a portion 28 of ksaid casing through two ports V29 and 30v drilled through the body 11 of the lock 10. r y

The valvehead and seat are constructed as follows, andare best shown in Figs. 2,3, 4 and'5. A discoidal valve head 31 of a diameter 'equal lto that of the lock body l1 is ground 0n one surface and is adapted to be seated upon the rear end of said lock body kr11, which surface is similarly ground. The major portion of the rear of the barrel 14 yfalls belowrthe surface 32 of the lock body and is vprovided' with a rectangular lug 33 projecting rearwardly of the lock body, which lug has attached to itfat one end a long threaded spindle 34. Valve head 31 is provided with a rectangular cavity 35 into which the lug 33 may extend and is held firmlyseated on thelock body 11y by means of a crowfoot spring 36 mounted on the spindle 34 under a lock nut 37. The cavity 35 in said valve head is somewhat deeper than the lug 33 so that said head will always remain seated regardless 0f the wear of the valve surfaces.

The opera-tion of the valve can best be comprehended from Fig. 4. When the lock barrel is rotated so the lock is closed the same is positioned as shown in Fig. 1 and the valve head 31 covers both ports 29 and 30, as shown in full lines in Fig. 4. When the lock is opened the valve head is rotated on the spindle 34. In this manner the joint between the barrel 14 and the valveheadl is rendered non-leak'able.Y It will be noted that the chamber 27 is somewhat enlarged in diameter as compared to the lock casing'y 16, providing operating space for the valve disk 3l,A 'which as'shown in Fig. 4 in dotted lines extendssomewhat beyondthe edge of the body proper. c

In order to tap the pipe-line a pet cock 39Vmay be screwed into the bottom of the casing 28. This is of special value'when the valve lock is used in conjunction with automobile feed lines where it is sometimes desir-able to secure a portion of the fuel for priming purposes.

The lock may be conveniently mounted to protrude through an instrument board 40, or similar device, as clearly shown in Figs. 2 and 3. For this purpose a pair of brackets 41 are formed integral with the lock housing 16 through which suitable screws may be inserted to hold the device in place,

The advantages of my invention are mani'- fest. The device can be easily made and occupies very little space. The valve is mountcd directly on the lock properand may be removed therewith. No levers or handles are required as the lock barrel is directly secured to the valve head and the saine is hence rotated by vmeans of the barrel through the key. There are no exposed parts to be tampered with and the valve cannot be operated without the key to cause the Huid to flow. With the form of lock employed the key remains in the key-way when Y the lock is open. This is especially advantageous for use with automobiles, as dirt cannot enter and clog the key-Way when the vehicle is in operation.

I claim:

l. A valve locking device comprising a casingga barrel lock having a body portion mounted in said casing and provided with separated chambers, said chambers being severally in communication with a pipe line, a separate chamber formed within the casingPV having ports communicating with the first named chambers and a valve member connected with the barrel of said lock and operated thereby to cover and uncover said ports.

2. A valve locking device comprising a casing, a barrel lock having a body portion mounted in said casing and providedywith separated chambers'. said chambers being severally in communication with a pipe line,

a separate chamber formed within the cas-- ing having ports communicating with the first named chambers, a valve plate rigidly connected with the barrel of said lock and having al portion offset therefrom and eccentrically rotatable therewith to cover and uncover said ports when the lock is oper ated.

3. A valve locking device comprising a casing, a barrel lock having a body portion mounted in said casing and provided with separated chambers, said chambers being severally in communication with a pipe line, a separate chamber formed within the casing having ports communicating with the lirst named chambers, and adiscoidal valve head operating within said separate chamber and secured to and operated by said barrelpfor opening and closing communication of said ports with the separate cha1nber.

In testimony whereof I affix my signature in presence of two witnesses.

y JOHN D. COMPTON. Witnesses:

YV. L. HAIRE, F. A. WHITELEY.

Copies of this patent may be obtained for ve cents each', by addressing the Commissioner of Patents,

Washingten, D. C. 

